DROP DOMAIN
Name
DROP DOMAIN -- remove a domain
Synopsis
DROP DOMAIN name [, ...]  [ CASCADE | RESTRICT ]
Description
   DROP DOMAIN will remove a domain.  Only the
   owner of a domain can remove it.
  
Parameters
- name
-       The name (optionally schema-qualified) of an existing domain.
      
- CASCADE
-       Automatically drop objects that depend on the domain (such as
      table columns).
      
- RESTRICT
-       Refuse to drop the domain if any objects depend on it.  This is
      the default.
      
Examples
   To remove the domain box:
DROP DOMAIN box;
  
Compatibility
   This command conforms to the SQL standard.